How to Fix Netflix Error H403 (7 Steps That Work)

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What is Netflix Error H403 And Why Does It Occur?

Netflix Error H403 means your app or account info on your device has a problem. It’s often caused by connection issues or bad data that stops Netflix from recognizing your device or account.

Common causes:

• Old Netflix app or device software
• Bad internet connection
• Corrupt app data or cache
• Account problems
• Issues with antivirus or firewall

These issues can also cause Netflix error NW-2-5 & other streaming service errors like Paramount+ error 3002.
If you already identified that this Netflix error happens due to network changes — see our guide for frequent wifi disruptions here.

7 Effective Steps to Fix Netflix Error ‘H403‘

Let’s see our tested methods that actually work in resolving the H403 issue.

Step 1. Update the Netflix App and Device Software

An up-to-date Netflix app and device software is the 1st and most important step to resolving any errors.
Here’s what you need to do for various devices:

• Go to your App Store (or Play Store for Android).
• Find Netflix and hit “Update”.

• For TVs or streaming devices, find the app section.

• Look for “Netflix updates”.

• Update “Netflix” and your device software.

• Restart and check “Netflix”.

Step 2. Clear Netflix App Data and Cache

Built-up cache and rubbish data on Netflix apps, can cause the error H403 in many devices.
Here’s how you can tackle it:

For Android:

• Go to “Settings” > “Apps” > “Netflix”.
• Tap “Storage”, then “Clear Cache” and “Clear Data”.
• Open “Netflix” and log in.

For iOS:

• Delete “Netflix”.
• Restart your device.
• Reinstall “Netflix”.

For TVs and streaming devices:

• Find “app settings”.
• Clear “Netflix” data or cache.
• If not possible, uninstall and reinstall.

Step 3. Check and Reset the Internet Connection

Faulty network is a cause for a myriad of Netflix errors in 90% of cases, do this to make sure your internet is spot-on:

• Unplug the modem and router for 30 seconds, then plug back in.
• Connect device directly to router with a cable if possible.

• Test speed at “fast.com”.

• Contact your internet provider if speed is low.

• Try a different network.

Step 4. Turn Off VPN or Proxy Temporarily

Faulty VPN app or IP issues can cause Netflix errors, so make sure to turn off your VPN temporarily:

• Disable any “VPN” or “proxy”.

• Clear browser cache and cookies.

• Try “Netflix” again.
• If it works, adjust VPN settings or try a different service.

Step 5. Reset Netflix on All Devices

When you’re logged in into multiple devices, there might be some glitches, so we recommend signing out from all of them:

• Go to “Netflix.com” > “Account” > “Sign out of all devices”.

• Wait 8 hours.
• Log back into “Netflix” on your device.

Step 6. Check Antivirus and Firewall

• Turn off antivirus or firewall temporarily.

• Try “Netflix”.
• If it works, add “Netflix” as an exception in your security software.
• Turn security software back on.

Why this works: A strict security software can sometimes misidentify Netflix traffic as suspicious, blocking it and causing H403 errors. Temporarily disabling these programs helps identify if they’re the cause. If Netflix works with them off, you can then create specific exceptions for Netflix in your security settings. The process allows Netflix to function normally while maintaining protection for other online activities.

Step 7. Reinstall Netflix

This gives a fresh start to your Netflix app which might help with any error, including H403.

• Uninstall “Netflix”.

• Restart your device.
• Reinstall “Netflix” from your app store.

• Log in and test.

If these steps don’t work, check Netflix Help Center or contact support. They can help with account-specific problems.

Otherwise, we recommend sharing your experience in comments below and use a reliable VPN mentioned below for uninterrupted streaming.